After four days of interrogation, when things don't go as planned, Cha Woo Jin from the prosecution tries to get Soo Hyun to talk by manipulating her thoughts with Hyung Joon's betrayal. Outside the prosecution's office, he tries to get Hyung Joon to work with him by reversely implicating her disloyalty. Meanwhile, Seok Joo takes things in his own hands and attempts to get Soo Hyun out.